Breakthroughs, discoveries, and DIY tips sent every weekday. The yearslong international fight to lay claim to the suspected "world's richest shipwreck" likely won't end anytime soon, especially after a research team's most recent conclusions. Experts have confirmed that dozens of gold coins scattered across the ocean floor off the coast of Colombia belonged to the San José, an ill-fated Spanish treasure galleon that sank over 300 years ago during a battle with British warships. The findings were published on June 10 in the journal Antiquity. In June 1708, the San José and a fleet of 17 other vessels departed the capital of Colombia for Europe laden with gold, silver, and uncut gems.